Building construction



Jan. 28, 1936. H, E. ANNING BUILDING CONSTRUCTION Filed April 23, 1954 INVENTOR HAROLD E.ANNlNG w/y I AITTORNEY Patented Jan. 28, 1936 UNITED. STATES all! f:

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@FFHCE BUELDING CONSTRUCTEON Application April 23, 1934, Serial No. 721,861

9 Claims.

This invention relates to building constructions, and has reference more specifically to slab constructions suitable for use as ceilings, but also being adapted for use in walls and floors.

In the construction of ceilings of cementiticus slabs, such as slabs made of gypsum, concrete, etc., it is desirable to provide a construction which is reinforced internally and along the longitudinal edges of the slabs so as to resist any cold flow and deflection of the gypsum slabs, and also to prevent rupture of the slabs due to stresses resulting from applied loads. It is also desirable to provide a fireproof ceiling construction which may be easily erected with the slabs securely locked together.

An object of this invention therefore, is to provide a slab building construction which may be easily and quickly erected with a minimum of labor.

Another object of the invention is to provide a fireproof slab ceiling construction which is properly reinforced to withstand loads and also cold flow of gypsum; also to improve building constructions in other respects hereinafter specified and claimed.

Reference is to be had to the accompanying drawing forming a part of this specification, in which Fig. 1 is a perspective sectional view of my improved ceiling construction,

. Fig. 2 is a sectional elevation on an enlarged scale through the ceiling construction,

Fig. 3 is an elevation of the ceiling tiles, and

Fig. 4 is a perspective elevation of a pair of mating tiles.

In erecting my improved ceiling construction, I employ spaced, parallel beams it supported at their ends in any suitable way on the framework of a building. These beams it are preferably of steel and in the form of I beams having webs ll, upper flanges l2 and lower flanges 53. Suspended below the beam flanges 53, I provide a plurality of cementitious slabs or tiles it which are preferably made of gypsum, but concrete or other cementitious material may be used. The

slabs M are preferably rectangular in shape and are provided on diagonally opposite transverse edges with outstanding cementitious tongues l5. Outstanding cementitious tongues it? and ii are formed along diagonally opposite corners of the longitudinal edges of the slab It.

One of the salient features of my invention consists in an L-shaped metallic runner 98 which is partially embedded in one of the longitudinal edges of the slab Id at the junction of the tongue It with the body of the tile. The runner I8 has a horizontally extending leg l 9 at the upper surface of tongue 56, and a leg at the edge of the slab it. An inwardly turned flange 2! is formed along the outer edge of the runner leg I9, said flange 29 being embedded in the tongue is so as to firmly attach the leg 59 to said tongue I6. A channel 22 is formed in the runner leg 1 9 so as to provide a shoulder 23 which is engaged by hooks 2G formed on the ends of transverse reinforcing bars 25 in the adjacent s1ab.- A number of the bars 25, such as three in number, extend transversely through the slab M, the centers of said bars 25 being provided with an upstanding reinforcing flange 2% to provide added stiffness to said bars. The opposite ends or" bars 25 are provided with hooks 26o which engage in loops 21 which are struck out from the metal of runner leg 25. The loops 27 are embedded in the slab M so that the runner leg 2 is firmly attached to said slab it, especially by reason of the engagement of said loops with the hooks 26a.

Longitudinal I beam reinforcing members 28 extend through the slab I l, being secured to bar flanges 25 by means of Wires 29. The ends 30 of members 28 are bent slightly downwardly so as to extend into the lower transverse tongue l5 and thus strengthen the same. The opposite ends of members 28 extend into the diagonally opposite transverse tongue I5 to reinforce the same. A return bent flange 32 is formed on the upper edge runner leg 20 to be engaged by hooks 33 formed on the lower ends of stirrup strap hangers 35'. which straddle the beams I!) and serve to connect said slabs Hi to the beams N]. If desired, the hangers 3-l may have a hook end 35 which engages under the beam flange 12 to support the slabs M. Preferably but not necessarily grout 36 may be poured into the space between the runner leg as and an inclined edge 31 on the slab it so as to provide a monolithic construction.

It will be seen that the construction described represents a ceiling structure which is easy to erect and provides maximum strength to resist any ordinary loads which may be applied, and also to r sist any tendency of the gypsum slabs to cold flow. The construction can be adapted for the construction of floors, roofs or vertical walls by causing the beams It to extend in the proper direction. A

I would state in conclusion, that while the illustrated example constitutes a practical embodiment of my invention, I do not Wish to be limited as new and desire to secure by Letters Patent:

1. In a ceiling construction, a plurality of supporting beamsin spaced, parallel relation, a plurality of slabs of cementitious material arranged in a plane below said beams, outstanding projecting tongues formed on opposite edges and on opposed faces of each of said slabs, said tongues forming interfitting upper and lower tongues of adjacent slabs, a channel-shaped metallic runner partially embedded in one edge of each tile, reinforcing bars embedded in each slab and having hook ends engaging said channel runners, and hangers engaging said channel runner and connecting said slabs to said beams.

2. In a ceiling construction, a plurality of supporting beams in spaced, parallel relation, a plurality of slabs of cementitious material arranged in a plane below said beams, outstanding tongues formed on opposite edges and on opposed faces of each of said slabs, one tongue of one slab being supported by the mating tongue of the adjacent slab, a channel-shaped metallic runner partially embedded in one edge of each tile adjacent said mating tongues, and a hanger member connected to said runners and 'to one of said beams so as to support said slabs.

horizontal plane, outstanding tongues formed'on opposite edges and on opposed faces of eachof said slabs, one tongue of one slab being supported by the mating tongue of the adjacent slab, an L-shaped metallic runner partially embedded in one edge of each tile adjacent said mating tongues, one leg of said runner being interposed betweensaid tongues, and hanger means connected to saidrunner for supporting a slab from a frame member.

4. In a ceiling construction, a plurality of cementitious slabs arranged in a substantiallyhorizontal plane, outstanding tongues formed on op posite edges and on opposed faces of each .of said slabs, one tongue of one slab being supported by the mating tongue'iof the adjacent slab, an L- shaped metallic runner partially embedded in one edge of each tile adjacent said mating-tongues, a shoulder formed on said runner, a'reinforcing member embedded in each slab and having a hook end engaging said runner shoulder, and,

means attached tosaid runners for suspending said slabs from frame members.

5. In a ceiling construction, a plurality of cementitious slabs arranged in a substantially horizontal plane, outstanding tongues formed on op- 5 posite edges and on opposed faces of each of said slabs, one tongue of one slab being supported by the mating tongue of the adjacent slab, an L- shaped metallic runner partially embedded in one edge of each tile adjacent said mating tongues, a return bent flange formed on one leg of said runner, and a hanger having a hook end engaging said flange, said hanger being adapted to attach said slabs to a frame member.

6. In a ceiling construction, a plurality of cem- 1 entitious slabs arranged in a substantially horizontal plane, outstanding tongues formed on opposite edges and on opposed faces of each of said slabs, one tongue of one slab being supported by the mating tongue of the adjacent slab, an L- 2 shaped metallic runner partially embedded in one edge of each tile adjacent said mating tongues, struck out loop members formed on one leg of said runner, a reinforcing member embedded in said slab and having a hook end engaging said 2 struck out member, and meansengaging said runner for supporting said slabs on a frame memher.

'7. In a building slab, a rectangular cementi tious slab having outstanding tongues formed on 3 opposite longitudinal and transverse edges and on opposed faces, and an L-shaped metallic runner partially embedded in one only of said longitudinal edges, said runner extending at the sur face of the angular intersection of a longitudinal 3 tongue and said slab. r

8; In a building slab, a rectangular cementitious slab having outstanding tongues formed on opposite longitudinal and transverse edges and on opposed faces, an L-shaped metallic runner 4 partially embedded in one only of 'said longitudinal edges, said runner extending at the surface of the angular intersection of a. longitudinal tongue and said slab, a transverse reinforcing member embedded in said slab and having one 4 end thereof securedto saidrun'ner, a'shoulder formed on said runner, and a projecting hool; formed on the opposite end of said reinforcing member and adapted to engage a runner shoulder of an adjacent slab] 5 9. A ceiling slab as described in claim 8 characterized by alongitudinal reinforcing member embedded in said slab and secured to said transverse reinforcing member.

HAROLD 'E. ANNING. 

